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DS36149J Scheda tecnica(PDF) 1 Page - National Semiconductor (TI) |
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DS36149J Scheda tecnica(HTML) 1 Page - National Semiconductor (TI) |
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1 / 6 page ![]() TLF7553 February 1986 DS16149DS36149 DS16179DS36179 Hex MOS Drivers General Description The DS16149DS36149 and DS16179DS36179 are Hex MOS drivers with outputs designed to drive large capacitive loads up to 500 pF associated with MOS memory systems PNP input transistors are employed to reduce input currents allowing the large fan-out to these drivers needed in memo- ry systems The circuit has Schottky-clamped transistor log- ic for minimum propagation delay and a disable control that places the outputs in the logic ‘‘1’’ state (see truth table) This is especially useful in MOS RAM applications where a set of address lines has to be in the logic ‘’1’’ state during refresh The DS16149DS36149 has a 15 X resistor in series with the outputs to dampen transients caused by the fast-switch- ing output The DS16179DS36179 has a direct low imped- ance output for use with or without an external resistor Features Y High speed capabilities Typ 9 ns driving 50 pF Typ 29 ns driving 500 pF Y Built-in 15 X damping resistor (DS16149DS36149) Y Same pin-out as DM8096 and DM74366 Schematic Diagram TLF7553 – 1 C1995 National Semiconductor Corporation RRD-B30M105Printed in U S A |
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